18540837

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1949}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 30825600

約数和(自身を除く): 12284763

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 1949, 3171, 5847, 9513, 13643, 17541, 40929, 122787, 294299, 882897, 2060093, 2648691, 6180279, 18540837]

約数ペア:

[(1, 18540837), (3, 6180279), (7, 2648691), (9, 2060093), (21, 882897), (63, 294299), (151, 122787), (453, 40929), (1057, 17541), (1359, 13643), (1949, 9513), (3171, 5847)]